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My diary . . . Notebook.

Green manures to make a comeback - with the cost of artificial nitrogenous fertilisers due to go up in price because of the rising cost of crude oil, Garden Organic is advising gardeners to look seriously at the use of leguminous green manures such as clover.

These plants in the pea family are able, with help of a number of bacteria, to store nitrogen on nodules on their roots and release it at a later stage - free nitrogen fertiliser.

For more advice on the benefits and cultivation of green manures, visit www.gardenorganic.org.uk or call 024 7630 3517 or download the RHS advisory leaflet on Green Manures from their website at www.rhs.org.uk.

Biological pest control questioned - Gardening Which? has carried out some thorough research into the efficacy of three of the main biological control measures that are currently available to amateur gardeners and found that 44% did not live up to their promises!!

Agralan (www.gardening-naturally.com) proved to be the most consistent for quality and Biowise (www.biowise-biocontrol.co.uk) performed worst of all.

Defenders (www.defenders.co.uk) showed itself best with slug control and Scarletts (www.scarletts.co.uk) red spider mite control contained the expected numbers of predators.

Check out www.just-green.com and www.organiccatalogue.com for alternative supplies of biological pest control.
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Title Annotation:Features
Publication:Huddersfield Daily Examiner (Huddersfield, England)
Date:Dec 15, 2007
Words:222
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